window.onload = async function () {
  const res = await get('/dashboard')

  const {
    data: { overview, year, salaryData, groupData, provinceData },
  } = res
  console.log('res:', res)
  // console.log(overview)

  //渲染头部数据
  for (let key in overview) {
    document.querySelector('[name=' + key).innerHTML = overview[key]
  }

  //调用
  renderYear(year)
  renderPieClass(salaryData)
  renderClassSalary(groupData)
  initMapChart(provinceData)
  //绑定事件委托
  const btns = document.querySelector('#btns')

  btns.addEventListener('click', function (e) {
    if (e.target.tagName === 'BUTTON') {
      //排他思想，设置高亮
      btns.querySelector('.btn-blue')?.classList.remove('btn-blue')
      e.target.classList.add('btn-blue')
      //调用渲染图表
      renderClassSalary(groupData, e.target.innerHTML)
    }
  })
}

//封装全年薪资图表
const renderYear = data => {
  // console.log(data)
  // 基于准备好的dom，初始化echarts实例
  const myChart = echarts.init(document.getElementById('line'))

  // 使用刚指定的配置项和数据显示图表。
  myChart.setOption({
    title: {
      text: '2022前端36期全年的薪资走向',
      top: '5%',
      left: '2%',
    },
    xAxis: {
      type: 'category',
      data: data.map(item => item.month),
      axisLine: {
        lineStyle: {
          type: 'dashed',
          color: '#ccc',
        },
      },
      //坐标轴标签的颜色
      axisLabel: {
        color: '#333',
      },
    },
    yAxis: {
      type: 'value',
      //分隔线的样式
      splitLine: {
        lineStyle: {
          type: 'dashed',
        },
      },
    },
    //鼠标移动出现提示
    tooltip: {
      trigger: 'axis',
    },
    //设置绘图网格
    grid: {
      //网格距离上方距离
      top: '20%',
    },
    color: [
      {
        type: 'linear',
        x: 0,
        y: 0,
        x2: 1,
        y2: 0,
        colorStops: [
          {
            offset: 0,
            color: '#499FEE', // 0% 处的颜色
          },
          {
            offset: 1,
            color: '#5D75F0', // 100% 处的颜色
          },
        ],
        global: false, // 缺省为 false
      },
    ],
    series: [
      {
        data: data.map(item => item.salary),
        type: 'line',
        smooth: true,
        lineStyle: {
          width: 6,
        },
        //标记的大小
        symbolSize: 10,
        //设置区域的渐变颜色
        areaStyle: {
          color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
            {
              offset: 0,
              color: '#499FEE',
            },
            {
              offset: 0.8,
              color: 'rgba(255,255,255,0.2)',
            },
            {
              offset: 1,
              color: 'rgba(255,255,255,0)',
            },
          ]),
        },
      },
    ],
  })
}

//封装班级薪资分布饼图
const renderPieClass = data => {
  // console.log(data)
  // 基于准备好的dom，初始化echarts实例
  const myChart = echarts.init(document.getElementById('salary'))

  // 使用刚指定的配置项和数据显示图表。
  myChart.setOption({
    title: {
      text: '班级薪资分布',
      top: 15,
      left: 10,
      textStyle: {
        fontSize: 16,
      },
    },
    tooltip: {
      trigger: 'item',
    },
    legend: {
      top: '80%',
      left: 'center',
    },
    color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'],
    series: [
      {
        name: '班级薪资分布',
        type: 'pie',
        radius: ['50%', '64%'],
        center: ['50%', '45%'],
        avoidLabelOverlap: false,
        itemStyle: {
          borderRadius: 10,
          borderColor: '#fff',
          borderWidth: 2,
        },
        label: {
          show: false,
          position: 'center',
        },
        labelLine: {
          show: false,
        },
        data: data.map(item => {
          return {
            name: item.label,
            value: item.b_count + item.g_count,
          }
        }),
      },
    ],
  })
}

//封装每组薪资柱状图
const renderClassSalary = (data, num = 1) => {
  // console.log(data[num])
  // 基于准备好的dom，初始化echarts实例
  const myChart = echarts.init(document.getElementById('lines'))

  // 使用刚指定的配置项和数据显示图表。
  myChart.setOption({
    xAxis: {
      grid: {
        left: 70,
        top: 30,
        right: 30,
        bottom: 50,
      },
      type: 'category',
      data: data[num].map(item => item.name),
      axisLine: {
        lineStyle: {
          type: 'dashed',
          color: '#ccc',
        },
      },
      axisLabel: {
        color: '#333',
      },
    },
    yAxis: {
      type: 'value',
      splitLine: {
        lineStyle: {
          type: 'dashed',
        },
      },
    },
    tooltip: {
      trigger: 'item',
    },
    color: [
      {
        type: 'linear',
        x: 0,
        y: 0,
        x2: 0,
        y2: 1,
        colorStops: [
          {
            offset: 0,
            color: '#34D39A', // 0% 处的颜色
          },
          {
            offset: 1,
            color: 'rgba(52,211,154,0.2)', // 100% 处的颜色
          },
        ],
        global: false, // 缺省为 false
      },
      {
        type: 'linear',
        x: 0,
        y: 0,
        x2: 0,
        y2: 1,
        colorStops: [
          {
            offset: 0,
            color: '#499FEE', // 0% 处的颜色
          },
          {
            offset: 1,
            color: 'rgba(73,159,238,0.2)', // 100% 处的颜色
          },
        ],
        global: false, // 缺省为 false
      },
    ],
    series: [
      {
        data: data[num].map(item => item.hope_salary),
        type: 'bar',
      },
      {
        data: data[num].map(item => item.salary),
        type: 'bar',
      },
    ],
  })
}

const initMapChart = provinceData => {
  const myEchart = echarts.init(document.querySelector('#map'))
  const dataList = [
    { name: '南海诸岛', value: 0 },
    { name: '北京', value: 20 },
    { name: '天津', value: 5 },
    { name: '上海', value: 3 },
    { name: '重庆', value: 2 },
    { name: '河北', value: 3 },
    { name: '河南', value: 3 },
    { name: '云南', value: 4 },
    { name: '辽宁', value: 1 },
    { name: '黑龙江', value: 0 },
    { name: '湖南', value: 0 },
    { name: '安徽', value: 0 },
    { name: '山东', value: 0 },
    { name: '新疆', value: 5 },
    { name: '江苏', value: 0 },
    { name: '浙江', value: 101 },
    { name: '江西', value: 0 },
    { name: '湖北', value: 0 },
    { name: '广西', value: 0 },
    { name: '甘肃', value: 0 },
    { name: '山西', value: 0 },
    { name: '内蒙古', value: 0 },
    { name: '陕西', value: 0 },
    { name: '吉林', value: 0 },
    { name: '福建', value: 0 },
    { name: '贵州', value: 0 },
    { name: '广东', value: 0 },
    { name: '青海', value: 0 },
    { name: '西藏', value: 0 },
    { name: '四川', value: 0 },
    { name: '宁夏', value: 0 },
    { name: '海南', value: 0 },
    { name: '台湾', value: 0 },
    { name: '香港', value: 0 },
    { name: '澳门', value: 0 },
  ]
  let option = {
    title: {
      text: '籍贯分布',
      top: 10,
      left: 10,
      textStyle: {
        fontSize: 16,
      },
    },
    tooltip: {
      trigger: 'item',
      formatter: '{b}: {c} 位学员',
      borderColor: 'transparent',
      backgroundColor: 'rgba(0,0,0,0.5)',
      textStyle: {
        color: '#fff',
      },
    },
    visualMap: {
      min: 0,
      max: 6,
      left: 'left',
      bottom: '20',
      text: ['6', '0'],
      inRange: {
        color: ['#ffffff', '#0075F0'],
      },
      show: true,
      left: 40,
    },
    geo: {
      map: 'china',
      roam: false,
      zoom: 1.0,
      label: {
        normal: {
          show: true,
          fontSize: '10',
          color: 'rgba(0,0,0,0.7)',
        },
      },
      itemStyle: {
        normal: {
          borderColor: 'rgba(0, 0, 0, 0.2)',
          color: '#e0ffff',
        },
        emphasis: {
          areaColor: '#34D39A',
          shadowOffsetX: 0,
          shadowOffsetY: 0,
          shadowBlur: 20,
          borderWidth: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)',
        },
      },
    },
    series: [
      {
        name: '籍贯分布',
        type: 'map',
        geoIndex: 0,
        data: provinceData,
      },
    ],
  }
  myEchart.setOption(option)
}
